Drain for ice-cream cabinets



LfG. GRAY. DRAIN FOR ICE CREAM CABINETS. APPLJCATION FILED JUNE 4. 1920.

1,38%352. Patented June 21,1921

7&1. ATTORNEYS unrren stares PATENT QFFi LEONARD Gr. GRAY, OF DECATUR, ILLINOIS, ASSIGNOR T0 WALBUS MANUFAC- TURING. CQM'PANY, 0F DECATUR, ILLINOIS, frCORPGPJATIOE 03E ILLINOIS.

DRAIN FOR ICE-GREAIV CABINETS.

eas es.

Application filed June 1, 1920.

T 0 all whom it may concern:

Be it known that T, LEONARD G. GRAY, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented a certain new and useful Improvement in Drains for ice Cream Cabinets, of which the following is a specification.

My invention has for its object, to provide a drain which will absolutely be leak-proof, and is so constructed as to prevent the heavy weight of the ice in the cabinet from breaking or crushing the drain and also to attord a protection so that when the operator is crushing the ice and packing it, the drain can not be injured.

My means of accomplishing the foregoing objects, may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and are a part of this specification in which:

Figure 1 is an isometric perspective view of an ice-cream cabinet with the drain installed.

Fig. 2 is a cross section through the cabinet.

Fig. 3 is an enlarged detail view in cross section of the drain showing one of the drain outlets.

Fig. 41 is a perspective view of the entire drain.

Fig. 5 is an enlarged detail view of the outlet plug.

Similar reference numerals refer to simi lar parts throughout the entire description.

As shown in the drawings, the cabinet 1 consists of a casing provided with side and end walls 2 and 3, and the bottom wall 1. These walls may be provided with suitable heat insulating lining 5, of the customary or usual material employed for this purpose. The entire cabinet is provided with an interior lining 6, formed of suitable metal. In the bottom of the cabinet 1, and adjacent the front wall is mounted my improved drain A, which is constructed as seen in the detail view of a trough which runs the full length of the body of the cabinet 1, and is provided with an outlet 7, to which the plumbing connections (not shown) may be attached. The top of the drain A is provided with a plurality of holes 8 which are provided for outlets from which compartments in the body of the cabinet 1 may drain. The contents of the compartments Specification of Letters Patent.

Patented June 21, 1921.

Serial No. 386,503.

are prevented from passing into the trough A by a removable outlet plug 9 which, as clearly seen from the detail view, Fig. 5, comprlses a pipe which is of sufficient length to extend up above the ice in the cabinet 1, and is provided with a suitable handle 11 at its upper end, the lower being provided with a washer 12, preferably of elastic or compressible material so as to prevent the water, caused by the melting of the ice in the cabinet 1, from flowing into the trough, except when desired, while, by litting the outlet plug 10, the brine water in the cabinet 1 will flow into the drain and out throu 'h the plumbing connection. By the use of this construction, no valves are necessary, a consummation which is highly desirable.

It is well known in the trade that when an icecream cabinet is iced, the ice is salted, which causesrapid evaporation of the units of refrigeration in the ice, thus generating a much lower temperature than can be accomplished with unsalted ice. In this rapid evaporation, brine water is formed, and when the brine water is allowed to accumulate in the cabinet in too great a proportion, the solution is, therefore, weakened to a point where the refrigeration is lessened. Also as the package of cream is gradually emptied, it becomes lighter, and it there' is too much brine water in the cabinet, it will float and cause the can to push the lid or cover off of the cabinet. To prevent these two objections, a number of holes 21 in the stand pipe or overflow plug are providedsaid stand pipe or overflow plug being hollow; thus when the brine water reaches the holes 21 in the stand pipe or overflow plug, it automatically runs off into the trough A, and on into the plumbing connection; and the trough A, not being closed by valves, it is obvious that the brine water and the drainage is taken. care of automatically.

The trough A. is constructed preferably of a copper channel 13, the edges 14 of which are flared outwardly and rest upon wooden supports 15 and 16, which are secured inside the body of the cabinet 1. These supports 15 and 16 form. a kind of trough or channel which is coated with an asphaltum cement, which is applied not only on the sides and bottom, but also on the supports 15 and 16. This asphaltum really never hardens, and the metal trough A. is embedded therein,

so that even if it should ever leak, the asphaltum cement would still prevent the esmight result from the heavy weight of the ice in the cabinet 1, to which it is subjected.

Themetal lining 6 of the cabinet i is provided with openings 18 which correspond to and are in register with the openings 8, formed in the top of the trough. This metal lining 6 is brazed to the top of the metal top 19 of the trough A. at the points where the openings in the lining 6 are in register with the openings 8 in the trough A. Temporary plugs are then inserted in the openings 8, and I pour in hot asphaltum until it covers the bottom to a thickness of about i to five sixteenths of an inch. The cabi net is then turned upon its side and the hot asphaltum is poured in l Vhen it sets, the cabinet is turned to the opposite side and after that, upon its ends, the same operation being repeated until the asphaltum forms a solid seamless, leak-proof, hard rubber like cover for the metal lining 6.

The temporary plugs are then pulled out of the openings 8 and a second lining 20 preferably formed of copper which lin-- ing actually forms the compartaents for the ice-cream, is placed in the cabinet. The copper lining 20 is provided with a plurality of openings corresponding in number to the openings in the trough A. These openings are provided with outlet ferrules 22 which extend down into the openings 8 through the asphalt and the metal lining 6 into the trough proper. I

Practice has shown that it is desirable that these ferrules 22 be constructed of smaller diameter than the diameter of the openings '8 in the trough A so that if the copper lining of the compartments which contain the salted ice, should be punctured, such brine water as passes through the puncture on to the asphaltum lining will run out into the trough A. through the annular opening intermediate the ferrules 22 and the opening 8 in the trough A.

The ferrules 22 are preferably brazed to the copper lining 20. 7

Practice has shown that it is very desirable to provide this outlet, inasmuch as it is necessary to care for the moisture which will accumulatein the event of the compartment lining 20 being punctured, and it will be obvious to a person skilled in the art that l have provided adequatemeans for caringfor this feature in the manner set forth.

It will be apparent from the foregoing description that by this construction, I am able to provide a drain which absolutely eliminates the necessity of any valves whatever, which is not only protected from the weight of the ice in the ice-cream cabinet, but also is thoroughly protected from the picks whlch are used to pack the ice down in the cabinet around the ice-cr am receptacles, thus insuring a perfectly dry cabinet at all times.

Although I have shown and described a specific form of construction, I do not wish to be understood as limiting myself to the precise and specific form of construction described and illustrated except as such limitations appear in the claims.

Having described my invention, what I regard as new and desire to secure by Letters Patent of the United States is:

1. In a device of the character described, the combination with an ice-cream cabinet, of a metal channel, the side walls of which are flanged, longitudinal supports secured in the bottom of the cabinet upon which the flanges of the metal channel rest, a coat of asphaltum cement intermediate the bottom, side walls and flanges of the metal channel and the cabinet, a top for said channel formed of water-proofed wood, a metal lining in said cabinet having a plurality of openings in bottom wall, there being a plurality of openings in the top of the channel corresponding to openings in the metal lining of the cabinet, a lining of asphaltum cement which entirely covers the said metal lining, a copper lining adjacent the asphalt, having openings in the bottom which register with the openings in the channel, a cylindrical sleeve of smaller diameter than the said openings, having a circumferential flange mounted in said openings, said flange being brazed to the metal lining, an outlet plug for said openings, comprising a pipe, the length of which conforms to the height of the cabinet, a handle at the top end of said pipe, and a washer at the lower end thereof, which is fitted to the said cylindrical sleeve, there being openings in said pipe at a predetermined height.

2. In a device of the character described, the combination with an ice-cream cabinet, of a metal lining, a metal trough, the said walls of which are flanged, longitudinal,

supports secured in the bottom of the cabinet upon which the flanges of the metal trough. rest, a coating of asphaltumcement intermediate the bottom, side Walls and flanges of the metal trough, a top for said trough formed of water-proofed wood, a metal top above said walls, there being a plurality of openings in said top, said metal lining having a plurality of openings in the bottom wall thereof, a second metal lining, a lining of asphaltum cement intermediate the two linings, the second lining having a plurality of openings which register with the first named openings, a plurality of sleeves mounted in said openings 01 smaller diameter than the openings, said sleeve being secured to the second metal lining, a plug for said openings, there being passages through said plug which carry oil the brine when it reaches a predetermined height.

3. An ice-cream cabinet comprising a casing provided with side, end and bottom walls, a layer of suitable heat insulating material on said walls, a metal lining fitted inside of said cabinet, there being openings in the bottom oi said metal lining, a drain with which said openings connect, a lining of asphaltum cement which entirely covers the said metal lining, a copper lining adjacent said asphalt, having openings therein which register with the openings leading to the drain.

l. A drain for ice-cream cabinets comprising a metal channel having laterally ex tending longitudinal flanges, supports for said flanges, a top for said channel, formed of water-prootfed wood, a metal top above said wood, a coating of asphaltum cement for the bottom, side walls, flanges and top of the channel, there being openings through the top leading to the interior of the chan nel.

5. In a device of the character described, the combination with the ice-cream cabinet of a drain for ice-cream cabinets comprising a metal channel having laterally extending longitudinal flanges, supports for said flanges, a top for said channel, formed of water-prooied wood, a metal top above said wood, a coating of asphaltum cement for the bottom, side walls, flanges and top of the channel, there being openings through the top leading to the interior of the channel, an outlet plug for said opening comprising a pipe, having a washer at the lower end which is 'fitted to the openings leading to the drain, there being openings in said pipe ing in said cabinet having a plurality of openings in bottom wall, there being a plurality of openings in the top of the channel corresponding to openings in the metal lining of the cabinet, a lining of asphaltum cement which entirely covers the said metal lining, a copper lining adjacent the asphalt, having openings in the bottom which register with the openings in the channel, a cylindrical sleeve of smaller diameter than the said openings, having a circumferential flange mounted in said openings, said flange being brazed to the metal lining, a plug for said openings which automatically drains the brine when it reaches a predetermined level.

in testimony whereof, I have signed the foregoing specification.

LEONARD G. GRAY. 

